Patent GB-1005398-A (GB)
Title: Improvements in or relating to razor blade holders
IPC: B26B21/16
Filed: 1963-02-18
Abstract: 1,005,398. Razors. J. P. H. V. C. LEWIS. Dec. 23, 1963 [Feb. 18, 1963], No. 17854/62. Heading B4B. In a safety razor comprising a handle 11, a platform 12 on which a doubleedged blade 14 is located and a cover 13, means are provided for connecting the cover to the platform and handle and other means are provided for moving the cover into contact with the blade to force the blade into the shaving position and for releasing the parts from the shaving position and moving them into an open position in which the razor can be cleaned, the cover exposing one edge only of the blade when the assembly is adjusted for shaving. The cover is provided with a probe 15, Fig. 1, having a screwthread 16 for mating with a screwthread 26 in the handle and an end 17 for engaging springs 27 in the handle, spigots 18, Fig. 2, for engaging holes 22 in the platform, a recess at each side to accommodate an undercut stud 23 on the platform and side plates 21 to enable the cover to be grasped easily when necessary. The platform has ridges 31, Fig. 3, to fit slots in the blade. The stud 23 may be omitted and the spigots, which would then be undercut, provided on the platform with the holes 22 being in the cover. In use, a blade is discharged from a dispenser over the stud 23 or the spigots 18, as the case may be, and slid along until the blade is held by the undercut or undercuts and positioned by the ridges 31 fitting the slots in the blade. The cover is applied to the handle and the probe pushed in until the end 17 engages the springs 27. The handle is then turned and the threads 16, 26 engaged to bring the razor into position for shaving. One edge of the blade is exposed from the end 19 of the cover but the other edge is covered by the end 20. When shaving is completed, the handle is unscrewed so that the cover is lifted from the blade but is retained on the handle by the probe 15 and springs 27. The razor can now be washed and when it is clean, the handle is screwed back on the cover. When it is desired to shave with the other edge of the blade, the razor is unscrewed into the washing position and the cover pulled off. The blade is still held on the platform by the stud 23 (or spigots 18) and the ridges 31. The cover is then turned end for end and reapplied to the razor. To adjust the shaving angle, a sleeve 28 is turned with respect to the handle, the position of a pointer 29 (not shown) indicating the degree of adjustment. In a modification, Fig. 6, the springs 27 are replaced by springs 45 which are carried by a spindle 37 the lower part of which is threaded and moves in a threaded bush fixed to the end 35 of the handle and rotatably fixed in the upper part of the handle. When the probe is engaged by the springs 45, the cover is moved up and down as the handle end 35 is turned relative to the rest of the handle and the cover can thus be moved from the shaving position into the washing position without being touched by hand. To adjust the shaving angle, a stud 39 is screwed into the handle end 35 to touch the end of the spindle 37 and thus limit the movement of the spindle and the movement of the cover relative to the platform. A knob 40 and pointer 29 indicates the degree of adjustment. The inner wall of the upper part of the handle is arranged so that when the springs 45 are in the upper position the ends of the springs can move into a recess 43 whilst in all other positions the springs are prevented from opening by the walls 42. The probe can therefore only be inserted in, and removed from, the handle when the razor is in the washing position. Additional springs 38, Fig. 7 (not shown) are provided to prevent unintentional movement of the spindle 37 when the razor is in the washing position.